{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-73647", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-13T14:04:09.604Z", "datePublished": "2026-08-13T17:57:09.014Z", "dateUpdated": "2026-08-13T18:41:21.421Z"}, "containers": {"cna": {"title": "Quasar Framework: Prototype pollution in Quasar extend() utility", "problemTypes": [{"descriptions": [{"cweId": "CWE-1321", "lang": "en", "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/quasarframework/quasar/security/advisories/GHSA-3r53-75j5-3g7j", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/quasarframework/quasar/security/advisories/GHSA-3r53-75j5-3g7j"}, {"name": "https://github.com/quasarframework/quasar/commit/d0a95d95ab3c29d13e1b8ba8c5e5025fd6ce35e7", "tags": ["x_refsource_MISC"], "url": "https://github.com/quasarframework/quasar/commit/d0a95d95ab3c29d13e1b8ba8c5e5025fd6ce35e7"}, {"name": "https://github.com/quasarframework/quasar/releases/tag/quasar-v2.22.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/quasarframework/quasar/releases/tag/quasar-v2.22.0"}], "affected": [{"vendor": "quasarframework", "product": "quasar", "versions": [{"version": "< 2.22.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-13T17:57:09.014Z"}, "descriptions": [{"lang": "en", "value": "Quasar Framework is a framework for building high-performance Vue.js user interfaces. Prior to 2.22.0, the public extend() utility in ui/src/utils/extend/extend.js recursively copied attacker-controlled object keys during extend(true, target, source) deep merges without rejecting an own __proto__ property. The merge could descend into the prototype object and write attacker-controlled properties to Object.prototype in the same JavaScript process. Applications that passed user-controlled or partially user-controlled objects to extend() could experience logic bypass, unsafe default-option injection, denial of service, or other application-specific impact when polluted properties were later consumed. This issue is fixed in version 2.22.0."}], "source": {"advisory": "GHSA-3r53-75j5-3g7j", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/quasarframework/quasar/security/advisories/GHSA-3r53-75j5-3g7j", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-13T18:41:13.711876Z", "id": "CVE-2026-73647", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-13T18:41:21.421Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-73647", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-13T18:41:13.711876Z"}}}], "references": [{"url": "https://github.com/quasarframework/quasar/security/advisories/GHSA-3r53-75j5-3g7j", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-13T18:40:58.763Z"}}], "cna": {"title": "Quasar Framework: Prototype pollution in Quasar extend() utility", "source": {"advisory": "GHSA-3r53-75j5-3g7j", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.6, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}], "affected": [{"vendor": "quasarframework", "product": "quasar", "versions": [{"status": "affected", "version": "< 2.22.0"}]}], "references": [{"url": "https://github.com/quasarframework/quasar/security/advisories/GHSA-3r53-75j5-3g7j", "name": "https://github.com/quasarframework/quasar/security/advisories/GHSA-3r53-75j5-3g7j", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/quasarframework/quasar/commit/d0a95d95ab3c29d13e1b8ba8c5e5025fd6ce35e7", "name": "https://github.com/quasarframework/quasar/commit/d0a95d95ab3c29d13e1b8ba8c5e5025fd6ce35e7", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/quasarframework/quasar/releases/tag/quasar-v2.22.0", "name": "https://github.com/quasarframework/quasar/releases/tag/quasar-v2.22.0", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "Quasar Framework is a framework for building high-performance Vue.js user interfaces. Prior to 2.22.0, the public extend() utility in ui/src/utils/extend/extend.js recursively copied attacker-controlled object keys during extend(true, target, source) deep merges without rejecting an own __proto__ property. The merge could descend into the prototype object and write attacker-controlled properties to Object.prototype in the same JavaScript process. Applications that passed user-controlled or partially user-controlled objects to extend() could experience logic bypass, unsafe default-option injection, denial of service, or other application-specific impact when polluted properties were later consumed. This issue is fixed in version 2.22.0."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-1321", "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-13T17:57:09.014Z"}}}, "cveMetadata": {"cveId": "CVE-2026-73647", "state": "PUBLISHED", "dateUpdated": "2026-08-13T18:41:21.421Z", "dateReserved": "2026-08-13T14:04:09.604Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-08-13T17:57:09.014Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "quasar", "vendor": "quasarframework", "versions": [{"status": "affected", "version": "< 2.22.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Quasar Framework is a framework for building high-performance Vue.js user interfaces. Prior to 2.22.0, the public extend() utility in ui/src/utils/extend/extend.js recursively copied attacker-controlled object keys during extend(true, target, source) deep merges without rejecting an own __proto__ property. The merge could descend into the prototype object and write attacker-controlled properties to Object.prototype in the same JavaScript process. Applications that passed user-controlled or partially user-controlled objects to extend() could experience logic bypass, unsafe default-option injection, denial of service, or other application-specific impact when polluted properties were later consumed. This issue is fixed in version 2.22.0."}], "id": "CVE-2026-73647", "lastModified": "2026-08-13T19:17:36.870", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.4, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-73647", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-13T18:41:13.711876Z", "version": "2.0.3"}}]}, "published": "2026-08-13T18:18:20.450", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/quasarframework/quasar/commit/d0a95d95ab3c29d13e1b8ba8c5e5025fd6ce35e7"}, {"source": "security-advisories@github.com", "url": "https://github.com/quasarframework/quasar/releases/tag/quasar-v2.22.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/quasarframework/quasar/security/advisories/GHSA-3r53-75j5-3g7j"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/quasarframework/quasar/security/advisories/GHSA-3r53-75j5-3g7j"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1321"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"created": "2026-08-13T19:45:17.313990+00:00", "updated": "2026-08-13T19:45:17.313995+00:00", "vendors": []}